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arXiv · 2201.06706

Revisiting superradiant stability of Kerr-Newman black holes under a charged massive scalar

Yun Soo Myung
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Abstract

We revisit the superradiant stability of Kerr-Newman black holes under a charged massive scalar perturbation. We obtain a newly suitable potential which is not singular at the outer horizon when a radial equation is expressed the Schr\"{o}dinger-type equation in terms of the tortoise coordinate. From the potential analysis, we find a condition for the superradiant stability of Kerr-Newman black holes.

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Yun Soo Myung. 2022-01-18. Revisiting superradiant stability of Kerr-Newman black holes under a charged massive scalar. https://doi.org/10.1140/epjc%2Fs10052-022-10476-w

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